Regex for Video File Extension

javascript

const regex = /\.(mp4|mov|avi|mkv|webm|flv|wmv|m4v)$/;
const isValid = regex.test(value);

python

import re
pattern = r'\.(mp4|mov|avi|mkv|webm|flv|wmv|m4v)$'
if re.match(pattern, value):
    print("valid")

ruby

pattern = /\.(mp4|mov|avi|mkv|webm|flv|wmv|m4v)$/
if value =~ pattern
  puts "valid"
end

php

if (preg_match('/\.(mp4|mov|avi|mkv|webm|flv|wmv|m4v)$/', $value)) {
    echo "valid";
}

java

String pattern = "\\.(mp4|mov|avi|mkv|webm|flv|wmv|m4v)$";
boolean isValid = value.matches(pattern);